Homework Help

What is the relationship between DNA and genes?no.

user profile pic

manloikonyak | Student, Undergraduate | (Level 1) eNoter

Posted June 6, 2012 at 5:42 AM via web

dislike 2 like

What is the relationship between DNA and genes?


2 Answers | Add Yours

user profile pic

myfavouritehero | Student, Grade 10 | (Level 1) Honors

Posted June 6, 2012 at 11:25 AM (Answer #1)

dislike 1 like

   Genes are the segments of DNA. DNA is the whole genome and it contains coding sequences as well as non-coding sequences and the coding sequences are the genes. A gene codes for a protein. A full single gene can be present at one place on DNA, or fragments or parts of a single gene may be present at different locations on DNA with non-coding region in between.

user profile pic

trophyhunter1 | College Teacher | (Level 3) Senior Educator

Posted June 7, 2012 at 3:53 PM (Answer #3)

dislike 1 like

Deoxyribonucleic acid, or DNA is the material that is located in the cell's nucleus that makes up the chromosomes and genes. Its molecule is in the shape of a double helix. The arrangement of nitrogenous bases in DNA determines an organism's traits. Every three bases is a triplet and codes for a particular amino acid. Amino acids joined together form a polypeptide and polypeptides make up proteins. Each gene, a distinct segment of DNA codes for a different protein. Proteins are important molecules as they are structural parts of an organism, can be enzymes or hormones. If a gene has a mutation, the protein may have limited or no function. This can cause a disease or death in an organism.


Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes